Dr. Siriwardena said, "The earth tremors had been mostly felt at a distance of 34 kilometers South-east of Galle and one kilometre below sea level. He said the tremor could have been the result of a minor earth shift, adding that there was no cause for fear. Some media websites have reported a series of earthquakes during the past 48 hours some distance away from Indonesia in the Indian Ocean. The nearest earthquake, measuring 4.7 on the Richter Scale, had been experienced just beyond the Nicobar Islands, belonging to India. Dr. Siriwardena said that however, there was no connection between the tremors experienced in Galle and the Nicobar earthquake. Both earthquakes had however, occurred simultaneously